/Engine/Source/Runtime/Engine/Classes/Materials/MaterialInstance.h
Returns the density of a texture in (LocalSpace Unit / Texture). Used for texture streaming metrics.
The density, or zero if no data is available for this texture.
virtual float GetTextureDensity ( [FName](API\Runtime\Core\UObject\FName) TextureName, const struct [FMeshUVChannelInfo](API\Runtime\Engine\FMeshUVChannelInfo) & UVChannelData ) const